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// Copyright (C) 2011 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.server.account;
import static com.google.common.collect.ImmutableList.toImmutableList;
import static com.google.common.collect.ImmutableSet.toImmutableSet;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.flogger.FluentLogger;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.AccountGroup;
import com.google.gerrit.server.cache.CacheModule;
import com.google.gerrit.server.group.InternalGroup;
import com.google.gerrit.server.group.db.Groups;
import com.google.gerrit.server.logging.TraceContext;
import com.google.gerrit.server.logging.TraceContext.TraceTimer;
import com.google.gerrit.server.query.group.InternalGroupQuery;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import com.google.inject.Module;
import com.google.inject.Provider;
import com.google.inject.Singleton;
import com.google.inject.TypeLiteral;
import com.google.inject.name.Named;
import java.util.Collection;
import java.util.Collections;
import java.util.concurrent.ExecutionException;
/** Tracks group inclusions in memory for efficient access. */
@Singleton
public class GroupIncludeCacheImpl implements GroupIncludeCache {
private static final FluentLogger logger = FluentLogger.forEnclosingClass();
private static final String PARENT_GROUPS_NAME = "groups_bysubgroup";
private static final String GROUPS_WITH_MEMBER_NAME = "groups_bymember";
private static final String EXTERNAL_NAME = "groups_external";
public static Module module() {
return new CacheModule() {
@Override
protected void configure() {
cache(
GROUPS_WITH_MEMBER_NAME,
Account.Id.class,
new TypeLiteral<ImmutableSet<AccountGroup.UUID>>() {})
.loader(GroupsWithMemberLoader.class);
cache(
PARENT_GROUPS_NAME,
AccountGroup.UUID.class,
new TypeLiteral<ImmutableList<AccountGroup.UUID>>() {})
.loader(ParentGroupsLoader.class);
cache(EXTERNAL_NAME, String.class, new TypeLiteral<ImmutableList<AccountGroup.UUID>>() {})
.loader(AllExternalLoader.class);
bind(GroupIncludeCacheImpl.class);
bind(GroupIncludeCache.class).to(GroupIncludeCacheImpl.class);
}
};
}
private final LoadingCache<Account.Id, ImmutableSet<AccountGroup.UUID>> groupsWithMember;
private final LoadingCache<AccountGroup.UUID, ImmutableList<AccountGroup.UUID>> parentGroups;
private final LoadingCache<String, ImmutableList<AccountGroup.UUID>> external;
@Inject
GroupIncludeCacheImpl(
@Named(GROUPS_WITH_MEMBER_NAME)
LoadingCache<Account.Id, ImmutableSet<AccountGroup.UUID>> groupsWithMember,
@Named(PARENT_GROUPS_NAME)
LoadingCache<AccountGroup.UUID, ImmutableList<AccountGroup.UUID>> parentGroups,
@Named(EXTERNAL_NAME) LoadingCache<String, ImmutableList<AccountGroup.UUID>> external) {
this.groupsWithMember = groupsWithMember;
this.parentGroups = parentGroups;
this.external = external;
}
@Override
public Collection<AccountGroup.UUID> getGroupsWithMember(Account.Id memberId) {
try {
return groupsWithMember.get(memberId);
} catch (ExecutionException e) {
logger.atWarning().withCause(e).log("Cannot load groups containing %s as member", memberId);
return ImmutableSet.of();
}
}
@Override
public Collection<AccountGroup.UUID> parentGroupsOf(AccountGroup.UUID groupId) {
try {
return parentGroups.get(groupId);
} catch (ExecutionException e) {
logger.atWarning().withCause(e).log("Cannot load included groups");
return Collections.emptySet();
}
}
@Override
public void evictGroupsWithMember(Account.Id memberId) {
if (memberId != null) {
logger.atFine().log("Evict groups with member %d", memberId.get());
groupsWithMember.invalidate(memberId);
}
}
@Override
public void evictParentGroupsOf(AccountGroup.UUID groupId) {
if (groupId != null) {
logger.atFine().log("Evict parent groups of %s", groupId.get());
parentGroups.invalidate(groupId);
if (!AccountGroup.isInternalGroup(groupId)) {
logger.atFine().log("Evict external group %s", groupId.get());
external.invalidate(EXTERNAL_NAME);
}
}
}
@Override
public Collection<AccountGroup.UUID> allExternalMembers() {
try {
return external.get(EXTERNAL_NAME);
} catch (ExecutionException e) {
logger.atWarning().withCause(e).log("Cannot load set of non-internal groups");
return ImmutableList.of();
}
}
static class GroupsWithMemberLoader
extends CacheLoader<Account.Id, ImmutableSet<AccountGroup.UUID>> {
private final Provider<InternalGroupQuery> groupQueryProvider;
@Inject
GroupsWithMemberLoader(Provider<InternalGroupQuery> groupQueryProvider) {
this.groupQueryProvider = groupQueryProvider;
}
@Override
public ImmutableSet<AccountGroup.UUID> load(Account.Id memberId) throws OrmException {
try (TraceTimer timer = TraceContext.newTimer("Loading groups with member %s", memberId)) {
return groupQueryProvider.get().byMember(memberId).stream()
.map(InternalGroup::getGroupUUID)
.collect(toImmutableSet());
}
}
}
static class ParentGroupsLoader
extends CacheLoader<AccountGroup.UUID, ImmutableList<AccountGroup.UUID>> {
private final Provider<InternalGroupQuery> groupQueryProvider;
@Inject
ParentGroupsLoader(Provider<InternalGroupQuery> groupQueryProvider) {
this.groupQueryProvider = groupQueryProvider;
}
@Override
public ImmutableList<AccountGroup.UUID> load(AccountGroup.UUID key) throws OrmException {
try (TraceTimer timer = TraceContext.newTimer("Loading parent groups of %s", key)) {
return groupQueryProvider.get().bySubgroup(key).stream()
.map(InternalGroup::getGroupUUID)
.collect(toImmutableList());
}
}
}
static class AllExternalLoader extends CacheLoader<String, ImmutableList<AccountGroup.UUID>> {
private final Groups groups;
@Inject
AllExternalLoader(Groups groups) {
this.groups = groups;
}
@Override
public ImmutableList<AccountGroup.UUID> load(String key) throws Exception {
try (TraceTimer timer = TraceContext.newTimer("Loading all external groups")) {
return groups.getExternalGroups().collect(toImmutableList());
}
}
}
}
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